Arriving at the Convenient Rays for Locating Image formed by a Spherical Mirror using Ray Tracing Technique and Verification of Mirror Formula by Graphical Method R.R. Koireng (Author) p.8-13 PDF
42nd Jawaharlal Nehru National Science, Mathematics and Environment Exhibition (JNNSMEE) for Children Gagan Gupta (Author) p.52-54 PDF